Click on the third or sixth rank to set the en passant target square.

EGTB: win in 4 half-moves

# move score
1 Rb4 win in 3 half-moves
2 Ra4 win in 5 half-moves
3 Rc4 win in 7 half-moves
4 Nf6 draw
5 Nf8 draw
6 Ng5 draw
7 Rd4 draw
8 Re1 draw
9 Re2 draw
10 Re5 draw
11 Re6 draw
12 Re7 draw
13 Re8 draw
14 Rf4 draw
15 Rg4 draw
16 Rh4 draw
17 Re3 loss in 1 half-moves